Physics I [Phys 161]                                    Spring 2005 Assignment #7 Reading, Vocabulary & Objectives A. Availability and Due Dates Assignment #7 is available Tuesday, April 5, 2005.  The target date for its successful completion is Friday, April 15, 2005.  In any event, all Mandatory Homework problems from Assignment #7 must be successfully completed and turned in by 5:00 pm on Wednesday, April 27, 2005.  If this requirement is not met, the student will not be allowed to take Exam 4, to be given in class on Thursday, April 28, 2005.   B. Reading As preparation for completing the problems in Assignment #7, read Chapters 11 and 12 in Knight. C. Vocabulary As part of Assignment #7, the following vocabulary words must be understood and memorized: Work, Thermal Energy, Dot Product (a.k.a. Scalar Product), Conservative Force, Nonconservative Force, Average Power, Instantaneous Power, Heat, Conduction, Convection, Internal Energy, Satellite, Orbit, Geosynchronous (or Geostationary) Orbit, Newton's Universal Gravitational Law, Escape Speed, Principle of Equivalence. D. Objectives In addition to the Objectives listed on Assignments #1- #6, after completing Assignment #7, the student should Know the definitions of those quantities listed in the vocabulary section above. Know the SI units in which all of the “dimensionful” quantities in the vocabulary section above are measured. Understand the concept of work, and be able to determine the amount of work done by or on an object given sufficient information. Understand the concept of power. Understand the difference between conservative and nonconservative forces, and be able to explain whay a conservative force allows the definition of an associated potential energy, while a nonconservative force does not.  The student should be able to construct a potential energy corresponding to any given conservative force, and vice versa. Understand that mass is a form of potential energy, and be able to determine the amount of potential energy stored in a given amount of matter. Know Newton's Law of Universal Gravitation, and be able to apply it given sufficient information.  Understand and be able to apply the concepts of Gravitational Field and Gravitational Potential Energy. Be able to apply Newton's Law of Universal Gravitation to the problem of satellite motion.  Understand and be able to reproduce all of the results that come from the solution of this problem.